For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting, along with many other massive animals like mastodons ...

It has a name, the President, bestowed about 90 years ago by admiring humans. It’s a giant sequoia, a member of Sequoiadendron giganteum, one of several surviving species of redwoods.

Now researchers have found other megafauna specimens, including giant sloths and camel-like ... then they would have lived side-by-side with humans who arrived in South America sometime between ...

On Tuesday, Humana Inc. (NYSE:HUM) posted a fourth-quarter adjusted EPS loss of $(2.16), down from $(0.11) a year ago, in line with the consensus and including incremental investments in Stars.